Dynometer.



K. MAZEWICZ.

DYNOMETER.

APPLICATION miv Amm. 1911.

1,288,953., Patented Dec. 24, 1918.

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K. MAZEWICZ.

ovNoMETER.

APPLICATION FILED AUG.6. |917.

1 ,288,953 Patented Dec. 24, 1918.

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K. l. MAZEWICZ.

oYNoMETER.

APPLICATION FILED AUG-6.1911.

1,288,953. Patented Dec. 24,1918.

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KONSTANTY I. MAZEWICZ, OF CHICAGO. ILLINOIS.

DYNOIVIETER.

Application filed August 6. 1917.

To all whom t may concern.'

lie it known that l, KoNsrAN'rY l. MaanwiCZ, a citizen of Russia, resident of Chicago, county of Cook, and State of lllinois, have invented certain new and useful lmprovenie-nts in Dynometers` of which the tollofwing is a specication.

This invention relates to` improvements in apparatus for indicating the pull exerted by an engine in drawing a train of cars, the type being known as dynometers.

The principal object of the invent-ion is to provide a device, preferably attachedwithin the cab of a locomotive, which will correctly register the tract-ive force of the engine in performing its work.

A further object is to provide such devices in forms which maybe applied to eX- isting engine structures, nvithout material change therein, and which may be under the constant inspection of the engineer.

These and other like objects are attained by the novel construction and combina-tion of parts hereafter described and shown in the accompanying drawings, forming a material part of this disclosure, and in which- Figure 1 is a fragmental side elevational view of an engine cab and tender, illustraning the application of the implement.

Fig. 2 is an end elevational view of the support brackets to which the pull is transmitted.

Fig. 3 is a front elevational view of the same.

F ig. 4 is a longitudinal sectional view or the adjusting means.

Fig. 5 is a plan View of the indicating instrument, the cover being removed, and parts being broken away in order to show the construction.

Fig. 6 is a front plan view of the same.

Fig. 7 is a vertical sectional view taken on line 7-7 of Fig. 6.

Fig. 8 is a. side elevational view of the indicator.

Fig. 9 is a perspective view showing the details of construction, and

Fig. 10 is another perspective view of the shaft or spindle used therein.

In the drawings, the numeral 10 represents the cab of the locomotive, to which is attached the tender 11, by means of the drawbar 12, the latter being pivotally engaged with a link 14, connecting at its opposite end with a bell-crank lever 15, pivotally mounted in a bracket 18, the other arm of the bell- Patented Dec. 24, 1918.

Serial No. 184,602.

crank lever being pivoted to a rod 20, passing upward through the floor of the cab, and engaged with a similar rod 22, the two being connected adjustably together by means of the rightand left hand nut 21.

The upper end of the rod 22 passes through the upright 25, of a bracket 26, rigidly secured within the cab of the locomotive, the rod having secured to it a collar 27, between which and the washer 28, resting against one of the standards 25, is a coiled compression spring 30, through which the entire tractive eect of the engine is transmitted.

A cylindrical casing 35 is provided with extending lugs 36, by means of which it may be secured to the walls of the locomotive, and also with a hinged cover 38, containing a transparent circular. `panel 40, and has mounted centrally in it a spindle 42 to which is secured a gear 43, having on its squared end 44, an index finger or hand 45, the point of which is registerable with a circular rofw of graduations 49 on the disk 46, secured to the standards 48, rising from the plate bracket 50, the latter being formed with appropriate bearings to receive the spindle 42 in which it freely rotates.

Also rising from the-bracket plate 50, which is bolted within the casing to an eX- tending shelf-like projection 51, are slideways 53, which in conjunction with the eX- tensions 54, formed with the casing, receives a rack-bar 55 to which motion is communicated by the rod 22.

From the foregoing, it will be seen that, due to the pull of the train of cars, commu. nicated through the draw-bar 12, link, bellcrank lever and rods, the spring 30 is compressed proportionately to the load, and that the hand 45 will correctly indicate the resistance of the load as drawn by the locomotive.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is-

1. In a. device for indicating the powerl of a locomotive, a bracket secured to the cab of a locomotive, a bell crank lever pivoted thereon, a link connected to one arm of the bell crank lever, a draw bar connecte-d to the said link, a rod pivoted to the other arm of the bell crank, a bracket constituting a guide for the rod, a `collar secured to the rod, a ,washer engaging the bracket, a spring interposed between the collar and the washer, a

graduated index7 and means whereby the motion of the rod is communicated to the index.

2. In a device for indicating the power oi a locomotive, a bracket secured to the cab of a locomotive, a rod slidable therein, a spring encircling the rod7 means for communicating the motion of the rod to the spring, means for resisting the displacement of the spring, a draw bar, meansfor communicating the motion of the draw bar to the rod, a graduated index comprising a casing `having a graduated face, a shaft rotatably mounted in the case and projecting beyond the face, an indicator on the said sha-ft, a pinion in the said shaft, brackets for supporting the shaft, guides Within the casing, a rack bar movable in the guides and engaging said pinion, and means for communicating the motion of .the rod to the said rack bar.

In testimony whereof I have aiifiXed my signature.

KONSTANTY I. MAZEWICZ.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

